This usually means Windows or the app is trying to use a work or school account instead of a personal Microsoft account.
Use the correct sign-in location for the account type:
- Personal Microsoft account: sign in at account.microsoft.com
- Work or school account: sign in at https://myaccount.microsoft.com
A personal Microsoft account cannot sign in to a business service, and if a work or school account is used with Outlook.com, it is redirected to the work or school mailbox. There is also no synchronization between personal accounts and work or school accounts.
On the Windows 11 laptop, check whether an organization account is connected:
- Open Settings.
- Go to Accounts > Access work or school.
- If an old workplace or school account appears and the device is no longer managed by that organization, select it and choose Disconnect.
- Restart the laptop.
If the account being used is actually a school or work account, password and sign-in help must be handled through the organization’s IT admin or the work/school account recovery options.
If the account is a personal Microsoft account and sign-in still fails, use the Microsoft Sign-in Helper tool. If the message says the account does not exist, the Sign-in Helper tool is also the recommended next step.
- How to sign in to a Microsoft account | Microsoft Support
- What's the difference between a Microsoft account and a work or school account? | Microsoft Support
- I can't sign in to my Microsoft account | Microsoft Support
- Microsoft 365: I can't sign in to my Microsoft account on my laptop (Windows 11) and ended up with an error - Microsoft Q&A